Can you freeze and reuse pickle brine?

My friend is making the type of pickles that you leave in brine in a crock for seven days prior to jarring them. She has left over brine from her latest batch and is wondering if she can freeze the brine and reuse it for her next batch? I have seen webpages that talk about freezing brine to make pickle popsicles (hmmm) but not about reusing it at a later date to make more pickles. Your thoughts?